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/* |
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* This file is part of ArakneLangLoader. |
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* |
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* ArakneLangLoader is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* ArakneLangLoader is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with ArakneLangLoader. If not, see <https://www.gnu.org/licenses/>. |
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* |
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* Copyright (c) 2020 Vincent Quatrevieux |
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*/ |
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package fr.arakne.swflangloader.loader; |
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import java.io.*; |
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import java.net.MalformedURLException; |
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import java.net.URL; |
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import java.util.HashMap; |
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import java.util.Map; |
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/** |
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* Load version from versions_xx.txt file |
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*/ |
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final public class TxtVersionsLoader implements VersionsLoader { |
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final static private String VERSION_FILE_PREFIX = "versions_"; |
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final static private String VERSION_FILE_EXTENSION = ".txt"; |
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@Override |
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public Map<String, Integer> forLanguage(URL baseUrl, String language) throws IOException { |
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final URL url = versionFile(baseUrl, language); |
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try (InputStream stream = new BufferedInputStream(url.openStream())) { |
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BufferedReader reader = new BufferedReader(new InputStreamReader(stream)); |
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return parseVersions(reader.readLine(), language); |
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} |
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} |
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private URL versionFile(URL baseUrl, String language) throws MalformedURLException { |
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return new URL( |
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baseUrl.getProtocol(), |
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baseUrl.getHost(), |
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baseUrl.getPort(), |
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baseUrl.getFile() + "/" + VERSION_FILE_PREFIX + language + VERSION_FILE_EXTENSION |
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); |
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} |
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private Map<String, Integer> parseVersions(String content, String language) { |
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if (!content.startsWith("&f=")) { |
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throw new IllegalArgumentException("Invalid versions file"); |
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} |
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Map<String, Integer> versions = new HashMap<>(); |
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for (int pos = 3, nextPos; (nextPos = content.indexOf('|', pos)) != -1 ; pos = nextPos + 1) { |
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final String[] parts = content.substring(pos, nextPos).split(",", 3); |
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if (parts.length != 3 || !parts[1].equals(language)) { |
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continue; |
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} |
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versions.put(parts[0], Integer.parseInt(parts[2])); |
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} |
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return versions; |
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} |
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} |
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Arakne /
SwfLangLoader
